Contact and contactless smartcard controllers

5 June 2002 DSP, Micros & Memory

Hitachi's AE45X series 16-bit smartcard microcontrollers provide both contact and contactless interfaces in a single chip. This series has a large-capacity on-chip memory with 36 KB EEPROM, 128 KB Mask ROM and 4 KB RAM, and incorporates a high-security encryption processor. This combination makes it ideal for enhanced and advanced smartcards, especially multiple-application types. The microcontrollers have an AE-4 16-bit CPU core that is specifically optimised for smartcards, and a co-processor that provides a high-security function for cryptographic systems. The on-chip memory is equipped with a firewall management unit to enable the storage of programs from multiple applications, and can store operating systems such as Multos and Java Card. The AE45X-B's external contact-type interface complies with the ISO/IEC7816 standard, while the contactless interface complies with the ISO/IEC14443 Type-B standard.

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